Update docker/build-push-action action to v7

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
docker/build-push-action	action	major	v6.18.0 → v7.0.0

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Release Notes

docker/build-push-action (docker/build-push-action)

v7.0.0

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v6.19.2

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• Preserve port in GIT_AUTH_TOKEN host by @​crazy-max in #​1458

Full Changelog: docker/build-push-action@v6.19.1...v6.19.2

v6.19.1

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• Derive GIT_AUTH_TOKEN host from GitHub server URL by @​crazy-max in #​1456

Full Changelog: docker/build-push-action@v6.19.0...v6.19.1

v6.19.0

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• Scope default git auth token to github.com by @​crazy-max in #​1451
• Bump brace-expansion from 1.1.11 to 1.1.12 in #​1396
• Bump form-data from 2.5.1 to 2.5.5 in #​1391
• Bump js-yaml from 3.14.1 to 3.14.2 in #​1429
• Bump lodash from 4.17.21 to 4.17.23 in #​1446
• Bump tmp from 0.2.3 to 0.2.4 in #​1398
• Bump undici from 5.28.4 to 5.29.0 in #​1397

Full Changelog: docker/build-push-action@v6.18.0...v6.19.0

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